Upgrade problem 5.0.4 -> 5.0.10

I upgraded the Zimbra because Clam was getting dangerously old.
Upgrade went smoothly and afterwards I tested my account and it was normal.
Next morning however users reported problems with some of the accounts.
The "Advanced View" no longer works properly.
See the picture here.

I tried changing the themes but that does not work.
In my own profile that looks ok the browser asked me if I wanted to update the browser cache?

Any ideas what could be causing this?

In testing with Opera...
Ok. Now I see a message on the login page."Note that your web browser or display does not fully support the Advanced version. We strongly recommend that you use the Standard client."

Clearing the cache broke my profile that was working normally.
So It's definitely related.
The old info in the cache showed the profile normally but new does not.
I have now tried with FF3, IE7, Opera. All the same.
In the picture I posted above it looks like it's trying to load something... I wonder.
Admin Console looks normal.
I created a new test user and logged in. Same thing. So it's all the accounts. Old and new.
Only Standard Version View works. So what went wrong with the Ajax upgrade? Could this be a "rights" issue?
Some files over written with root:root when they are supposed to be zimbra:zimbra?

check the screen resolution

Originally Posted by SamTzu

"Note that your web browser or display does not fully support the Advanced version. We strongly recommend that you use the Standard client."

A couple of our users complained they were getting that error and it turned out to be their screen resolution was set too low and the Advanced version could not support. In both cases they had it set to 800*600, increasing this solved the problem.

Then it's not related to our problem.
I think something went wrong with the Ajax upgrade.
The browser seems to be loading something and gets stuck.
Should I try to check the filesystem rights on /opt/zimbra ?

In the picture it looks like the Advanced page is compressed somehow to a very small resolution.
The HTML version does not seem to care about the resolution.
Now one of the accounts seem to work normally after I logged in with a mini computer.
I don't know if its related or if it's just some indexing/maintenance kicking in Zimbra.

As a temporary solutions I have manually changed everyone's account to use HTML mode instead of Ajax. In the future it would be nice to know if there is an automated way to change the accounts back? Still no clues how the Ajax broke, I don't see any errors in the log.